02-04-2014
• arclein
, Sudan 2:00 PM The eastern Sahara Desert was once home to a 45,000 km2 freshwater lake similar in surface area to the largest in the world today. A large dried lake in the White Nile Valley floor [Credit: Barrows et al/ Geological Society of America] A study led by the University of Exeter has revealed that the mega lake was probably formed more than one hundred thousand years a